Patents by Inventor Marko Pellonperä

Marko Pellonperä has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6690743
    Abstract: A method of compensating delay in an linearization loop of a power amplifier and a linearization arrangement of a power amplifier, which arrangement includes an I/Q modulator, one or more power amplifiers to be linearized and generating delay, and a feedback loop including an I/Q demodulator when the I/Q modulator and the I/Q demodulator derive an oscillator frequency from the same local oscillator. In accordance with the invention, the delay generated the power amplifier in the feedback is compensated by delaying a local oscillator signal applied to the I/Q demodulator. The delay of the local oscillator signal applied to the I/Q demodulator is generated by an amplifier optimized to have a great delay, preferably by a small-signal amplifier.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: February 10, 2004
    Assignee: Nokia Telecommunications Oy
    Inventor: Marko Pellonperä